luciana was making $10 per hour. she just got a raise and now makes $10.50 an hour. what was the precent increase in her hourly wage??​

-2 is the right

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8